CN112373575A - Tail door structure and car - Google Patents

Abstract

The invention relates to a tail door structure and an automobile, wherein the tail door structure comprises a tail door inner plate and a tail door outer plate which are connected with each other, a connecting piece is arranged at the bottom end of the tail door inner plate, the connecting piece comprises a first connecting plate and a second connecting plate which are connected with each other, one end of the first connecting plate, which is far away from the second connecting plate, is connected with the side end of the tail door inner plate, and the second connecting plate is connected with the tail door outer plate. According to the tail gate structure and the automobile provided by the invention, the connecting piece is arranged between the tail gate outer plate and the tail gate inner plate, so that the static rigidity and the integral mode of the tail gate structure are improved; through set up the portion of reducing thin on first connecting plate and/or second connecting plate for when bumping, the connecting piece is along the disconnection of the portion of reducing thin, reduces the destruction degree of tail-gate inner panel, thereby plays the energy-absorbing effect.

Description

Tail door structure and car

Technical Field

The invention relates to the field of automobile parts, in particular to a tail gate structure and an automobile.

Background

At present, an automobile tail door structure generally comprises a tail door inner plate and a tail door outer plate, wherein the tail door inner plate and the tail door outer plate are connected in a gluing mode, and a cavity area is formed between the tail door inner plate and the tail door outer plate. Due to the structural modeling, the distance between the tail door outer plate and the tail door inner plate in the cavity area is often too large, and the overall mode of the tail door structure and the static rigidity of the area can be reduced. To meet the static stiffness and modal requirements, an adhesive attachment is typically added in the cavity area. At present, the common connecting structure is jointed with the tail door outer plate by locally changing the X-direction depth of the tail door inner plate, and the jointing area is connected by adopting an adhesive mode. However, such a structure will occupy a large space of the inner panel of the tail gate, and the tail gate structure will often break in a high-speed collision, and such a structure cannot play an additional energy absorption role.

Disclosure of Invention

The invention provides a tail door structure and an automobile, wherein a connecting piece is arranged between a tail door inner plate and a tail door outer plate, so that the static rigidity of the region is effectively increased, the mode is improved, and the energy absorption effect is realized in the collision process.

One aspect of the present invention provides a tailgate structure, comprising:

the tail-gate inner panel and the tail-gate planking of interconnect, its characterized in that, the bottom of tail-gate inner panel is equipped with the connecting piece, the connecting piece includes interconnect's first connecting plate and second connecting plate, the one end that the second connecting plate was kept away from to first connecting plate with the side of tail-gate inner panel links to each other, the second connecting plate with the tail-gate planking links to each other.

Further, the first connecting plate is provided with a first thinning part extending along the transverse direction, and the thickness of the first thinning part is smaller than that of the first connecting plate.

Further, the thickness of the first thinned portion is 0.

Furthermore, a first reinforcing rib and a second reinforcing rib are arranged on the first connecting plate and the second connecting plate.

Furthermore, a third connecting plate is arranged on the first connecting plate, and two ends of the third connecting plate are respectively connected with the second reinforcing rib and the bottom end of the tail door inner plate.

Furthermore, a second thinning portion extending along the transverse direction is arranged on the third connecting plate, and the thickness of the second thinning portion is smaller than that of the third connecting plate.

Further, the thickness of the second thinned portion is 0.

Further, the tail door outer plate is bonded with the second connecting plate; and/or the presence of a gas in the gas,

the connecting piece and the tail door inner plate are integrally formed.

Furthermore, the connecting pieces are two and are symmetrically arranged on two sides of the inner plate of the tail door.

Another aspect of the invention provides an automobile comprising a tailgate structure as described above.

According to the tail gate structure and the automobile provided by the invention, the cavity between the tail gate outer plate and the tail gate inner plate is provided with the connecting piece, so that the tail gate outer plate and the tail gate inner plate are connected, and the static rigidity of the cavity area and the integral mode of the tail gate structure are improved; the first connecting plate and/or the second connecting plate of the connecting piece are/is provided with the thinning portions, so that the connecting piece is disconnected along the thinning portions when collision occurs, the damage degree of the inner plate of the tail door is reduced, and the energy absorption effect is achieved.

Drawings

FIG. 1 is an exploded view of a tailgate structure provided in accordance with an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a tailgate structure provided in accordance with an embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is a schematic structural diagram of a connector according to an embodiment of the present invention;

FIG. 5 is a right side view of FIG. 4;

FIG. 6 is a schematic structural view of a connection member with a first thinned portion according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a connecting member with a first thinned portion having a thickness of 0 according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of a connection member with a second thinned portion according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a connecting member when the thickness of the second thinned portion is 0 according to an embodiment of the present invention.

Reference numerals:

1-a tail gate outer plate;

2-a rear door inner panel;

3-glue;

4-a connector;

41-a first connection plate;

411 — first thinning;

42-a second connecting plate;

43-a first stiffener;

44-a second reinforcing rib;

45-a third connecting plate;

451-second thinning.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example one

As shown in fig. 1-3, an embodiment of the present invention provides a tailgate structure, which includes a tailgate outer panel 1 and a tailgate inner panel 2, wherein the peripheries of the tailgate outer panel 1 and the tailgate inner panel 2 are bonded together by glue 3, and a cavity region is formed between the tailgate outer panel 1 and the tailgate inner panel 2. In order to improve the static rigidity of the region and enable the whole mode of the tail gate structure, a connecting piece 4 can be arranged in the cavity region, the connecting piece 4 is arranged at the bottom end of the tail gate inner plate 2, and the two ends in the X direction of the connecting piece are respectively connected with the side end of the tail gate inner plate 2 and the tail gate outer plate 1. As shown in fig. 4 and 5, the connector 4 includes a first connecting plate 41 and a second connecting plate 42, the first connecting plate 42 is disposed along the X direction and is used for connecting the tailgate inner panel 2 and the second connecting plate 42, the second connecting plate 42 is connected to one end of the first connecting plate 41 and is perpendicular to the first connecting plate, and the other end of the first connecting plate 41 is connected to the side end of the tailgate inner panel 2. The second connecting plate 42 is connected with the tail door outer plate 1, and the outer side surface of the second connecting plate 42 is attached to the tail door outer plate 1 and then connected together. As shown in fig. 2, the region C is a connection region between the tail door outer panel 1 and the second connection plate 42, specifically, the outer side surfaces of the tail door outer panel 1 and the second connection plate 42 are first attached, and then the two are connected by glue. Therefore, in the cavity area, the tail gate outer plate 1 and the tail gate inner plate 2 can be connected through the connecting piece 4, so that the static rigidity of the area is improved, and the overall mode of the tail gate structure is improved.

The first connecting plate 41 and the second connecting plate 42 are further provided with a first reinforcing rib 43 and a second reinforcing rib 44 for reinforcing the strength of the connecting piece 4, the first connecting plate 41 is provided with a third connecting plate 45, the third connecting plate 45 is arranged along the Z direction, and two ends of the third connecting plate are respectively connected with the second reinforcing rib 44 and the bottom end of the tail door inner plate 2. This increases the strength of the connecting element 4 and thus further increases the static stiffness in the cavity region.

As shown in fig. 3, the connectors 4 may be provided in two, the two connectors 4 are symmetrically provided, the regions D and E are portions of the connectors 4 having the first reinforcing ribs 43, the second reinforcing ribs 44 and the third connecting plates 45, and the regions D and E are symmetrically configured. By arranging the two connecting pieces 4, the static rigidity and the mode of the tail gate structure can be further improved.

As shown in fig. 6, the connecting member 4 may be thinned, that is, the first thinning portion 411 is provided on the first connecting plate 41, and the thickness of the first thinning portion 411 is smaller than the thickness of the other portion of the first connecting plate 41, so that after a high-speed collision occurs, the connecting member 4 will be broken along the first thinning portion 411, and the degree of damage of the tailgate inner panel 2 is reduced, thereby performing an energy absorbing function.

Specifically, as shown in fig. 7, the thickness of the first thinning portion 411 may be set to 0 so that the first connecting plate 41 is broken at this point, and at this time, the length L of the first thinning portion 411 may be adjusted as needed, for example, so that the first thinning portion 411 does not extend to the bottom end of the first connecting plate 41 to be partially broken, and thus, is more likely to be broken in a collision. When the first thinning portion 411 extends up to the bottom end of the first link plate 41, the region F in fig. 7 is not effective and can be deleted, and at this time, the first link plate 41 is not connected to the side end of the tailgate inner panel 2 and the link is connected to the tailgate inner panel 2 only by the portion of the region E in fig. 3, which can prevent surface quality problems such as surface sink marks from occurring at the connection.

As shown in fig. 8, the third connecting plate 45 may be provided with a second thinning portion 451, and the thickness of the second thinning portion 451 is smaller than the thickness of the other portion of the third connecting plate 45, so that the third connecting plate 45 is broken along the second thinning portion 451 after a high-speed collision occurs, thereby reducing the degree of damage to the tailgate inner panel 2 and performing an energy absorbing function.

As shown in fig. 9, the thickness of the second reduced thickness portion 451 may be set to 0, i.e., the third connecting plate 45 is broken, so that the third connecting plate 45 is more easily broken and the energy absorbing effect is better.

The connecting piece 4 can be integrally formed with the tail gate inner plate 2, and the tail gate structure is a plastic part generally, so that the connecting piece 4 can be formed with the tail gate inner plate 2 in an injection molding mode.

It should be noted that the structure of the present invention can also be applied to other required areas, that is, the outer tailgate panel 1 and the inner tailgate panel 2 are replaced by other parts to be connected, for example, the area between the inner tailgate panel and the spoiler, and a similar connector structure is provided between the inner tailgate panel and the spoiler to improve the static stiffness and the mode of the structure. The invention is not limited in this regard.

According to the tail gate structure provided by the embodiment of the invention, the connecting piece 4 is arranged in the cavity between the tail gate outer plate 1 and the tail gate inner plate 2, and the tail gate outer plate and the tail gate inner plate are connected, so that the static rigidity of the cavity area and the overall mode of the tail gate structure are improved; by arranging the thinning portions on the first connecting plate 41 and/or the second connecting plate 45 of the connecting piece 4, the connecting piece 4 is broken along the thinning portions when collision occurs, the damage degree of the tail door inner plate 2 is reduced, and the energy absorption effect is achieved.

Example two

The embodiment provides an automobile, which comprises the tail gate structure in the first embodiment.

The automobile provided by the embodiment has the advantages that through the adoption of the tail gate structure in the first embodiment, the static rigidity and the mode of the automobile tail gate are improved, in addition, when collision occurs, the tail gate can play an energy absorption role, and the damage degree of the tail gate is reduced.

The above embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and various changes may be made in the above embodiments of the present invention. All simple and equivalent changes and modifications made according to the claims and the content of the specification of the present application fall within the scope of the claims of the present patent application. The invention has not been described in detail in order to avoid obscuring the invention.

Claims (10)

1. The utility model provides a tail-gate structure, includes interconnect's tail-gate inner panel and tail-gate planking, its characterized in that, the bottom of tail-gate inner panel is equipped with the connecting piece, the connecting piece includes interconnect's first connecting plate and second connecting plate, the one end that the second connecting plate was kept away from to first connecting plate with the side of tail-gate inner panel links to each other, the second connecting plate with the tail-gate planking links to each other.

2. A tailgate structure according to claim 1, characterized in that said first connecting plate has a first thinning section extending in the transverse direction, the thickness of said first thinning section being smaller than the thickness of said first connecting plate.

3. A tailgate structure according to claim 2, characterized in that the thickness of the first thinned portion is 0.

4. A tailgate structure according to claim 1, characterized in that the first and second connecting plates are provided with first and second reinforcing ribs.

5. The tailgate structure according to claim 4, wherein a third connecting plate is provided on the first connecting plate, and both ends of the third connecting plate are connected to the second reinforcing rib and the bottom end of the tailgate inner panel, respectively.

6. A tailgate structure according to claim 5, characterized in that the third connecting plate is provided with a second transversely extending thinning having a thickness smaller than the third connecting plate.

7. The tailgate structure, according to claim 6, characterized in that the thickness of the second thinned portion is 0.

8. The tailgate structure according to claim 1, wherein the tailgate outer panel is bonded to the second web; and/or the presence of a gas in the gas,

the connecting piece and the tail door inner plate are integrally formed.

9. The tailgate structure according to claim 1, characterized in that the connectors are two and symmetrically arranged on both sides of the tailgate inner panel.

10. An automobile, characterized by comprising a tailgate structure according to any of claims 1-9.

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